First, despite the headline, nowhere in the actual article does it say 4s and 5s will be fired. In fact, the snarky comment for 5 explicitly says they won't be

First, despite the headline, nowhere in the actual article does it say 4s and 5s will be fired. In fact, the snarky comment for 5 explicitly says they won't be fired. Second, I don't really see putting people into these groups is so bad because it's relative to the other employees. Even if everybody is awesome, some people will be more awesome than others. It would be ridiculous to assume everybody in the group is providing the exact same amount of value and should all be ranked 1 or 2.